1 files changed, 40 insertions, 0 deletions
diff --git a/afb-client/bower_components/tether/coffee/abutment.coffee b/afb-client/bower_components/tether/coffee/abutment.coffee
new file mode 100644
index 0000000..5f331e4
--- /dev/null
+++ b/afb-client/bower_components/tether/coffee/abutment.coffee
@@ -0,0 +1,40 @@
+{getBounds, updateClasses, defer} = @Tether.Utils
+
+@Tether.modules.push
+  position: ({top, left}) ->
+    {height, width} = @cache 'element-bounds', => getBounds @element
+
+    targetPos = @getTargetBounds()
+
+    bottom = top + height
+    right = left + width
+
+    abutted = []
+    if top <= targetPos.bottom and bottom >= targetPos.top
+      for side in ['left', 'right']
+        if targetPos[side] in [left, right]
+          abutted.push side
+
+    if left <= targetPos.right and right >= targetPos.left
+      for side in ['top', 'bottom']
+        if targetPos[side] in [top, bottom]
+          abutted.push side
+
+    allClasses = []
+    addClasses = []
+    
+    sides = ['left', 'top', 'right', 'bottom']
+    allClasses.push @getClass('abutted')
+    for side in sides
+      allClasses.push "#{ @getClass('abutted') }-#{ side }"
+
+    if abutted.length
+      addClasses.push @getClass('abutted')
+    for side in abutted
+      addClasses.push "#{ @getClass('abutted') }-#{ side }"
+
+    defer =>
+      updateClasses @target, addClasses, allClasses
+      updateClasses @element, addClasses, allClasses
+
+    true